body{
    margin: 0px;
    padding: 0px;
    font-size: 16px;
    background-color: rgb(205, 205, 205);
}
section{
   margin: 0 auto;
   width: 600px;
}
header{
    height: 50px;
    background-color: rgb(50, 50, 50);
    line-height: 50px;
}
header .name{
    float: left;
    width: 100px;  
    font-size: 24px;
    color: white;
    cursor: pointer;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
}
header input{
    float: right;
    width: 60%;
    height: 24px;
    text-indent: 10px;
    border-radius: 5px;
    margin-top:12px ;
    box-shadow: 0px 1px 0px rgba(255, 255, 255, 0.24), 0 1px 6px rgba(0, 0, 0, 0.45) inset;
    outline: none;
}
h2 {
    position: relative;
}
span{
    position: absolute;
    right: 5px;
    display: inline-block;
    height: 20px;
    padding: 0 5px; 
    /* 给盒子增加内边距扩大盒子 ，然后盒子就能成圆了 */
    border-radius: 20px;
   
    background-color: #E6E6FA;
    color: #666;
    font-size: 14px;
}
ol,
ul {
    padding: 0;
    list-style: none;
}
li {
    position: relative;
    height: 32px;
    background-color: white;
    padding: 0 45px;
    border-radius: 5px;
    line-height: 32px;
    border-left: 5px solid #629A9C;
}
li input{
   position: absolute;
   top: 2px;
   left: 10px;
    width: 20px;
    height: 20px;
    outline: none;
    cursor: pointer;
}

li p{
    margin: 0;
}

li a{
    position: absolute;
    display: inline-block;
    right: 5px;
    top: 4px;
    width: 14px;
    height: 14px;
    border: 6px double #fff;
    border-radius: 14px;
    background-color: rgb(204, 204, 204);
}


footer{
    text-align: center;
}